Finding the Fourth Proportional to 12,726.25, 17,561.89 and 6,983.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,726.25 : 17,561.89 = 6,983.69 : x
2. Step 2: Convert to fraction form
   12,726.25/17,561.89 = 6,983.69/x
3. Step 3: Cross multiply
   12,726.25x = 17,561.89 × 6,983.69
4. Step 4: Simplify right side
   12,726.25x = 122,646,815.28
5. Step 5: Solve for x
   x = 122,646,815.28/12,726.25
6. Step 6: Final answer
   x = 9,637.31